Aery Family in New York City, 1850-1900

Charles H. Aery, born about 1832 in Hannover, Germany had an account at the New York Immigrant Savings Bank in 1856. He was married to Mary Ann Duffy.(The census says she was from Prussia, but that name sounds Irish to me).

He said he'd come to America when he was 12 years old.I have not been able to get him across the pond.Anyone have any ideas?